Am 15.12.2011 00:58, schrieb Benjamin Herrenschmidt:
> We rename the mach64 hack to "simple" since that's also applicable
> to anything using VGA-style DAC IO ports (set to 8-bit DAC) and we
> use it for qemu vga.
> 
> Note that this is keyed on a device-tree "compatible" property that
> is currently only set by an upcoming version of SLOF when using the
> qemu "pseries" platform. This is on purpose as other qemu ppc platforms
> using OpenBIOS aren't properly setting the DAC to 8-bit at the time of
> the writing of this patch.
> 
> We can fix OpenBIOS later to do that and add the required property, in
> which case it will be matched by this change.

Just let me know what's needed for OpenBIOS.
Is this just for -vga std as opposed to the default cirrus?

Cheers,
Andreas

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